Methods and mechanisms for proactive memory management
First Claim
1. In a computer system, a method comprising:
- tracing page usage for a plurality of pages;
associating a priority value with each traced page based on the traced usage of that page; and
prioritizing at least some of the pages that are in memory relative to other pages on another storage based on the priority value associated with each page.
2 Assignments
0 Petitions
Accused Products
Abstract
A proactive, resilient and self-tuning memory management system and method that result in actual and perceived performance improvements in memory management, by loading and maintaining data that is likely to be needed into memory, before the data is actually needed. The system includes mechanisms directed towards historical memory usage monitoring, memory usage analysis, refreshing memory with highly-valued (e.g., highly utilized) pages, I/O pre-fetching efficiency, and aggressive disk management. Based on the memory usage information, pages are prioritized with relative values, and mechanisms work to pre-fetch and/or maintain the more valuable pages in memory. Pages are pre-fetched and maintained in a prioritized standby page set that includes a number of subsets, by which more valuable pages remain in memory over less valuable pages. Valuable data that is paged out may be automatically brought back, in a resilient manner. Benefits include significantly reducing or even eliminating disk I/O due to memory page faults.
-
Citations
20 Claims
-
1. In a computer system, a method comprising:
-
tracing page usage for a plurality of pages;
associating a priority value with each traced page based on the traced usage of that page; and
prioritizing at least some of the pages that are in memory relative to other pages on another storage based on the priority value associated with each page. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. In a computing environment, a system comprising:
-
a tracing mechanism that tracks memory page usage for a plurality of pages; and
a prioritization mechanism that associates a score with each tracked page based at least in part on the memory page usage tracked for that page. - View Dependent Claims (17, 18, 19)
-
-
20. A computer-readable medium having computer-executable instructions, which when executed perform steps, comprising:
-
capturing rich information on memory use, the rich information comprising at least one of pattern, frequency, context and grouping data;
persisting the rich information; and
using the rich information to per-fetch pages into a memory prior to an actual demand for the pages.
-
Specification